Frequency Converter

Convert between different units of frequency - hertz, kilohertz, megahertz, RPM, and more.

Result: 0.0000e+0

What It Does

A Frequency Converter is a specialized tool for converting between different units of frequency measurement. Frequency is the number of cycles or oscillations per unit time, measured in hertz (Hz). The converter converts between hertz (Hz), kilohertz (kHz), megahertz (MHz), gigahertz (GHz), RPM (revolutions per minute), RPS (revolutions per second), and radians per second (rad/s). This tool is essential for electronics (radio frequencies, processor speeds), audio engineering (sound frequencies), mechanical systems (rotational speeds), physics (wave frequencies), and scientific research. It provides accurate conversions with support for both standard frequency units and rotational speed units. Perfect for understanding processor speeds, radio frequencies, audio frequencies, engine RPM, and any frequency-related measurements.

Key Features:

  • Convert between 7 common frequency units (hertz, kilohertz, megahertz, gigahertz, RPM, RPS, radians/second)
  • Real-time conversion as you type - instant results
  • Swap button to quickly reverse conversion direction
  • High precision results with scientific notation for very high frequencies
  • Electronics: GHz and MHz for processor and radio frequencies
  • Audio: Hz and kHz for sound frequencies
  • Mechanical: RPM for rotational speeds
  • Mobile-responsive design for on-the-go conversions

How To Use

Convert frequencies instantly between different units. Perfect for electronics, audio, physics, and mechanical applications.

1

Enter the Frequency Value

Type or paste the frequency value you want to convert into the "Value" input field. You can enter whole numbers or decimals (e.g., 1000, 2.4, 0.001).

2

Select Source Unit

Choose the unit you're converting FROM using the "From" dropdown. Options include hertz, kilohertz, megahertz, gigahertz, RPM, RPS, and radians/second.

3

Select Target Unit

Choose the unit you want to convert TO using the "To" dropdown. The result updates automatically as you make your selection.

4

View Result

See the converted frequency value displayed prominently in the result box. Very high frequencies may be shown in scientific notation for readability.

5

Swap Units (Optional)

Click the swap button (⇄) to instantly reverse the conversion direction, swapping the "From" and "To" units without re-entering the value.

Pro Tips

  • •1 hertz (Hz) = 1 cycle per second
  • •1 kilohertz (kHz) = 1,000 Hz
  • •1 megahertz (MHz) = 1,000,000 Hz
  • •1 gigahertz (GHz) = 1,000,000,000 Hz
  • •1 RPM = 1/60 Hz (revolutions per minute)
  • •1 RPS = 1 Hz (revolutions per second)
  • •Audio frequencies range from 20 Hz to 20,000 Hz (20 kHz)

Benefits

Electronics: Convert processor speeds and radio frequencies
Audio: Convert sound frequencies for audio engineering
Mechanical: Convert rotational speeds (RPM) to frequency
Physics: Convert wave frequencies for scientific calculations
Education: Learn frequency relationships and unit conversions
Accuracy: Eliminate manual calculation errors in frequency conversions
Time Saving: Instant conversions save time over manual calculations
Versatility: Handle everything from Hz to GHz

Use Cases

Processor Speeds

Convert processor clock speeds between different units. Processors are rated in GHz, but you may need to convert to MHz or Hz.

Convert 3.5 GHz processor speed to MHz (3,500 MHz) for technical specifications

Radio Frequencies

Convert radio frequencies for communication and broadcasting. Radio frequencies are typically in kHz, MHz, or GHz.

Convert 100 MHz radio frequency to kHz (100,000 kHz) for radio tuning

Audio Engineering

Convert sound frequencies for audio work. Audio frequencies range from 20 Hz (low bass) to 20,000 Hz (high treble).

Convert 440 Hz (musical note A) to kHz (0.44 kHz) for audio equipment settings

Engine RPM

Convert engine rotational speed to frequency. Engines are rated in RPM, which can be converted to Hz or other frequency units.

Convert 3,000 RPM engine speed to Hz (50 Hz) for frequency analysis

Physics and Waves

Convert wave frequencies for physics calculations. Scientists work with frequencies in Hz, but may need other units.

Convert 60 Hz AC electricity frequency to radians/second (377 rad/s) for physics calculations

Frequently Asked Questions

1 What is the relationship between frequency and period?
Frequency and period are inverse: frequency = 1/period, and period = 1/frequency. Frequency is measured in hertz (cycles per second), while period is measured in seconds (time per cycle). For example, a frequency of 60 Hz has a period of 1/60 = 0.0167 seconds. Higher frequency means shorter period, and vice versa. This relationship is fundamental to understanding waves and oscillations.
2 How do I convert RPM to hertz?
To convert RPM (revolutions per minute) to hertz, divide by 60. For example, 3,600 RPM ÷ 60 = 60 Hz. To convert hertz to RPM, multiply by 60. For example, 50 Hz × 60 = 3,000 RPM. RPM measures rotational speed, while hertz measures frequency. Since 1 revolution = 1 cycle, RPM is essentially frequency measured per minute instead of per second.
3 What frequency range can humans hear?
Humans can typically hear frequencies from about 20 Hz (low bass) to 20,000 Hz or 20 kHz (high treble). This range decreases with age, especially the high frequencies. Audio equipment is designed to handle this range. Frequencies below 20 Hz are infrasound, and frequencies above 20 kHz are ultrasound. The converter handles the full range from very low (RPM) to very high (GHz) frequencies.
4 What are gigahertz used for?
Gigahertz (GHz) are used for very high frequencies, primarily in electronics and computing. Processor clock speeds are measured in GHz (e.g., 3.5 GHz CPU). Radio frequencies in the microwave range are also in GHz. One GHz = 1,000 MHz = 1,000,000 kHz = 1,000,000,000 Hz. Modern processors operate in the 2-5 GHz range, while older processors were measured in MHz.
5 How do radians per second relate to frequency?
Radians per second (rad/s) is angular frequency, related to regular frequency (Hz) by: angular frequency = 2π × frequency. For example, 60 Hz = 60 × 2π = 377 rad/s. Angular frequency is used in physics for rotational motion and AC circuit analysis. It represents the rate of change of phase angle in radians per second. The converter handles this conversion automatically.
6 What is the difference between frequency and rotational speed?
Frequency measures cycles per second (Hz), while rotational speed measures revolutions per minute (RPM). They're related: 1 RPM = 1/60 Hz. Frequency is used for waves, oscillations, and electronics. Rotational speed is used for mechanical systems like engines, motors, and wheels. Both measure how often something repeats, but frequency uses seconds while RPM uses minutes. The converter bridges these different measurement systems.

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